Pack for adhesive sheets

Abstract

A pack for adhesive sheets which a) are detachable without residue or destruction by extensive stretching in the direction of their bond plane and b) have on one or both sides a pressure-sensitive adhesive composition based on an elastomer resin mixture, wherein c) the pack is UV-impermeable and d) comprises sheetlike liner materials for the regions of the pressure-sensitive adhesive composition that are to be bonded, and/or an outer packaging for the adhesive sheet, and/or an individual pack with transparent packaging elements.

1. A combination comprising:
 a) at least one adhesive sheet comprising a top adhesive face, a bottom adhesive face, and four sides; 
 b) a UV-impermeable material applied to at least both of said faces or entirely enclosing said at least one adhesive sheet; 
 wherein at least one of said top adhesive face and said bottom adhesive face comprises a pressure sensitive adhesive composition based on an elastomer resin; 
 wherein said at least one adhesive sheet can be released from a substrate to which it has been adhered by stretching said at least one adhesive sheet in the direction of the bond formed between said at least one adhesive sheet and said substrate; and 
 wherein the UV-impermeable material has a transmission for electromagnetic radiation in the wavelength range of 240–320 nm is below 2% and comprises at least one of the following: 
 i) at least one UV-impermeable transparent release liner sheet applied to and covering at least said top adhesive face and said bottom adhesive face over their entire adhesive areas; 
 ii) a UV-impermeable individual adhesive sheet package comprising a transparent package of UV-impermeable material completely enclosing one of said adhesive sheets in UV-impermeable material; and 
 iii) a UV-impermeable outer transparent package comprising an outer package of UV-impermeable material completely enclosing at least one of said adhesive sheets in UV-impermeable material, wherein said outer package further comprises at least one transparent packing element. 
 
     
     
       2. The combination of  claim 1 , wherein the liner sheet and/or the outer package and/or the individual package are partly or fully transparent. 
     
     
       3. The combination of  claim 2 , wherein the liner sheet and/or the outer package and/or the individual package are partly or fully colored. 
     
     
       4. The combination of  claim 1  wherein the liner sheet has been formulated to be adhesive in a contact region with the pressure-sensitive adhesive composition. 
     
     
       5. The combination of  claim 4 , wherein the liner sheet in the contact region with the pressure-sensitive adhesive composition comprise a silicone release agent. 
     
     
       6. The combination of  claim 1 , wherein the outer package comprises a sealing film, a sealing paper, or a metal foil. 
     
     
       7. The combination of  claim 1 , which comprises an individual package wherein the individual pack comprises a transparent packaging film. 
     
     
       8. The combination of  claim 1 , wherein at least one adhesive sheet has pressure-sensitive adhesive composition on both sides. 
     
     
       9. The combination of  claim 1 , wherein the pressure-sensitive adhesive composition comprises natural rubber or synthetic rubber. 
     
     
       10. A method of packaging at least one adhesive sheet comprising
 a) providing at least one adhesive sheet and a pack and 
 b) enclosing said at least one adhesive sheet in said pack, 
 
       wherein said at least one adhesive sheet comprises a pressure sensitive adhesive composition based on an elastomer resin on one or both sides; and wherein said at least one adhesive sheet can be released from a substrate to which it has been adhered by stretching said at least one adhesive sheet in the direction of the bond formed between said at least one adhesive sheet and said substrate; and 
       wherein said pack is UV-impermeable, material has a transmission for electromagnetic radiation in the wavelength range of 240–320 nm is below 2% and comprises at least one of the following:
 i) transparent liner sheet covering regions of said pressure sensitive adhesive composition; 
 ii) an individual package enclosing said adhesive sheet, said individual package comprising transparent packaging elements; and 
 iii) an outer transparent package enclosing a plurality of said adhesive sheets. 
 
     
     
       11. The method of  claim 10 , further comprising storing at least one adhesive sheet in said pack. 
     
     
       12. The method of  claim 10 , further comprising transporting at least one adhesive sheet in said pack. 
     
     
       13. The method of  claim 10 , further comprising selling at least one adhesive sheet in said pack. 
     
     
       14. The combination of  claim 1 , which is UV-impermeable such that its transmission for electromagnetic radiation in the wavelength range 280–320 nm is below 1%. 
     
     
       15. The combination of  claim 1 , which is UV-impermeable such that its transmission for electromagnetic radiation in the wavelength range 280–320 nm is below 2%. 
     
     
       16. The combination of  claim 15 , which is UV-impermeable such that its transmission for electromagnetic radiation in the wavelength range 280–320 nm is below 1%. 
     
     
       17. The combination of  claim 1 , which is UV-impermeable such that its transmission for electromagnetic radiation in the wavelength range 320–360 nm is below 2%. 
     
     
       18. The combination of  claim 1 , which is UV-impermeable such that its transmission for electromagnetic radiation in the wavelength range 360–420 nm is below 2%. 
     
     
       19. The combination of  claim 4 , wherein the liner sheet comprises a release paper or a release film. 
     
     
       20. The combination of  claim 9 , wherein the pressure-sensitive adhesive composition comprises styrene block copolymers.